diameter = pi / circumference diameter = 72 / 3.1415926 = 22.918312 inches *************
You've reversed the substitutions for the variables from your first line in the second line (pi/72 is 0.04365, not 22.918312). Although your value for the diameter is OK, your formula does not support it.
The formula for circumference is C=2*pi*r (read as "C=two pi R"), or more simply, C=pi*d. Therefore, if both sides are divided by pi (to get d on one side of the equation only) you get C/pi=d. Using the value given for C and if pi is rounded to 3.14159, the answer is d=72/3.14159; d=22.91833 I went to that length to show how to restate the standard equation. That ability is a fundamental skill in math, and I'd hazard to guess that the asker could have figured out the answer if someone had shown them how to do that. If not, then maybe it will help someone else in the future.
The circumference is the diameter x 2.
Pi is caused by the ratio of a circle's circumference to its diameter.
They use it to describe the relation of the circumference to the diameter
The 1996 Nissan dashboard speakers measure 4.5 inches in diameter. The front door speakers measure 5.5 inches in diameter. The rear speakers measure 5.5 inches in diameter.
The diameter of the Earth through the Poles is only slightly less than the diameter across the Equator Polar diameter = 12713.6 km Equatorial diameter = 12,756.2 km Which is a difference of just 42.6 km - or less than 0.34%
Since π is the ratio between the diameter and the circumference, Diameter = 72 in /π = 22.92 in
(72 pi) inches = 226.19 inches (rounded)
To calculate the diameter from the circumference, divide the circumference by pi - π 6' = 72 inches. 72 / π = 22.9 inches
The circumference of a circle, if the diameter is 9.5 inches, is: 29.85 inches (diameter x Pi = circumference)
If the circumference of a circle is 28 inches the diameter is: 8.913 inches (circumference divided by Pi = diameter).
The diameter of a circle with circumference of 25.56 inches is: 8.136 inches (diameter x Pi = circumference).
If a circle has a circumference of 6 inches the diameter is: 1.91 inches (circumference divided by Pi = diameter).
If a circle has a diameter of 24 inches its circumference is: 75.4 inches (diameter x Pi = circumference).
If the circumference of a circle is 10 inches, the diameter is: about 3.183 inches. (circumference divided by Pi = diameter)
If a circle has a diameter of 12.8 inches its circumference is: 40.21 inches (circumference = diameter x Pi).
The circumference of a circle if its diameter is 20 inches is: 62.83 inches (diameter x Pi = circumference).
If the circumference of a circle is 75 inches, the diameter is: about 23.87 inches. (diameter = circumference divided by pi).